CA2049142A1 - Crane securement latch - Google Patents

Crane securement latch

Info

Publication number
CA2049142A1
CA2049142A1 CA2049142A CA2049142A CA2049142A1 CA 2049142 A1 CA2049142 A1 CA 2049142A1 CA 2049142 A CA2049142 A CA 2049142A CA 2049142 A CA2049142 A CA 2049142A CA 2049142 A1 CA2049142 A1 CA 2049142A1
Authority
CA
Canada
Prior art keywords
latch
crane
hook
latch arm
lip member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2049142A
Other languages
French (fr)
Other versions
CA2049142C (en
Inventor
Herbert D. Long, Jr.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harnischfeger Corp
Original Assignee
Harnischfeger Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Harnischfeger Corp filed Critical Harnischfeger Corp
Publication of CA2049142A1 publication Critical patent/CA2049142A1/en
Application granted granted Critical
Publication of CA2049142C publication Critical patent/CA2049142C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
    • B66C9/18—Travelling gear incorporated in or fitted to trolleys or cranes with means for locking trolleys or cranes to runways or tracks to prevent inadvertent movements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K7/00—Railway stops fixed to permanent way; Track brakes or retarding apparatus fixed to permanent way; Sand tracks or the like
    • B61K7/02—Track brakes or retarding apparatus
    • B61K7/04—Track brakes or retarding apparatus with clamping action
    • B61K7/06—Track brakes or retarding apparatus with clamping action operated mechanically

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)

Abstract

A latch for a crane travelable along a pair of generally parallel rails and having an overhead frame and a plurality of wheels engaging both of the rails for supporting the crane during its travel on the rails. The latch comprises a latch arm mounted on the crane and having a path of movement substantially in the direction of travel of the crane. The latch arm also includes a transversely protecting hook. A latch block is stationarily mounted and has a lip member projecting into the path of movement of the latch arm. The hook on the latch arm moves with the latch arm into engagement with the lip member and the lip member and hook have an engaged position in which the lip member is positioned between the hook and the crane whereby the crane is held from traveling away from the the latch block. The latch may also include a compressible bumper mounted on the crane and engaging the latch block compressively in the direction of the crane travel toward the latch block. The crane is thereby also held from traveling toward the latch block. A support is positioned below the latch arm when the hook and lip means are in their engaged position. The support is movable to an upward position beneath the latch arm to support the latch arm in an upward position in which the hook and lip member are disengaged.
CA002049142A 1990-08-27 1991-08-14 Crane securement latch Expired - Fee Related CA2049142C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/572,287 1990-08-27
US07/572,287 US5142992A (en) 1990-08-27 1990-08-27 Crane securement latch

Publications (2)

Publication Number Publication Date
CA2049142A1 true CA2049142A1 (en) 1992-02-28
CA2049142C CA2049142C (en) 1996-05-14

Family

ID=24287157

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002049142A Expired - Fee Related CA2049142C (en) 1990-08-27 1991-08-14 Crane securement latch

Country Status (2)

Country Link
US (1) US5142992A (en)
CA (1) CA2049142C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5904099A (en) * 1997-08-15 1999-05-18 Playworld Systems, Inc. Cushioned braking system for a monorail trolley
DE102009004299B4 (en) * 2009-01-10 2017-12-28 Ceratis Gmbh Workpiece carrier for friction conveyor
EP2677087B1 (en) 2012-06-21 2014-12-31 Caterpillar Work Tools B. V. Cross-link assembly for a dangling worktool

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH14126A (en) * 1897-04-07 1897-10-15 Passavant Iselin Hans Franz Device for the automatic locking of closed barriers at road and railroad crossings
US809483A (en) * 1905-06-09 1906-01-09 John R Whittemore Locking device for cranes.
US3710728A (en) * 1970-03-09 1973-01-16 Steel Corp Outdoor crane
US3696756A (en) * 1971-02-01 1972-10-10 Teledyne Mid America Corp Car retaining cushioned latch mechanism
US4453469A (en) * 1982-04-05 1984-06-12 Bedford Beryl A Trolley stop for track switch

Also Published As

Publication number Publication date
CA2049142C (en) 1996-05-14
US5142992A (en) 1992-09-01

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed